9/28 Write a program to swap the values of two variables

Question

Write a program to swap the values of two variables. The program will ask the user to input variables x and y with numerical values. You must write code that exchanges their values: the value of x after your code runs must equal the value that y had before your code ran, and the value of y after your code runs must equal the value that x had before your code ran.

寫一個交換兩個變數的程式

Example input:

3
5

Example output:

5
3

Remember: Your output may be 100% correct, but your code matters!

Comments

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Answer 1

Hidden content!
#include<stdio.h>

int main()
{
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**   * ** ** **  *** *  *  ** 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 2

Hidden content!
#include <stdio.h>
int main()
{
*  *  ***  ** *** *  *  *   *  first_number;
  *** *** ** *  * **  **** *  second_number;
 ***  ****   ***  ** * * *  ** swap;

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*****  *  *  *** * *** *  *  * *   0;

}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 3

Hidden content!
#include<stdio.h>
int main(){
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return 0;}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

---

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 4

Hidden content!
#include<stdio.h>
int main()
{
int a,b;
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return 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 5

Hidden content!
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* *   **
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***        * ** ** x   y *  ***  * ***  *     **  ** 


  * ** 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 6

Hidden content!
***  *  **   ****
int  *  * **
{
 **** ***  ***  a,b,swap;
 *  *  **  * * *   *  *
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swap=a;
a=b;
b=swap;
   * * * * *  ***   a);
 **      ** ** *   ** *  
* *   * **** ****  0 ;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 7

Hidden content!
 *     ** **   * *
main()
{
** ***   *    *  * * *  
 ** ** ** *   * ***  ** ** * 
** *     *** ** * ***   ** *   *
swap=a;
a=b;
b=swap;
***  **   ********  **** *   a);
** * * *  **     *  *****
* ***** ***  * * **  0 ;
}

Comments

prog.c:2:1: warning: return type defaults to 'int' [-Wimplicit-int]
 main()
 ^~~~

Answer 8

Hidden content!
**    **      *   ** 
 int main(){
int a,b;

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return 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 9

Hidden content!
*** *     *** *  * *  
*** ** ** main(){
int a,b;

***  ***  *  *  *  *  * * *  *   **          *     *****  *  *        **

  ** ***  *** **  * ** ** *  *** *   **   **    * * **

return 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 10

Hidden content!
#include <stdio.h>

int main(){
        *  *  * ***  *
  * * *     ** * *****   ***** x,y,temp;
**   ***    * *   **  ** 
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   ** * * **   * ** *     * **** ** *****   *  *  * ** **
    
***      * *** ** *  *   ** *  ** = x;
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 *  **   *** ***  * **  * * **** = temp;
*** *** ** *    ***** *
 *  ** ****  * *    ** ** * *** *   **   ** *      x,y);
*        * *   ** * *** ****  *
* * *  ** *  * ** ** *  **   0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output